EP3785374A1 - Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5g communication - Google Patents
Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5g communicationInfo
- Publication number
- EP3785374A1 EP3785374A1 EP19792257.8A EP19792257A EP3785374A1 EP 3785374 A1 EP3785374 A1 EP 3785374A1 EP 19792257 A EP19792257 A EP 19792257A EP 3785374 A1 EP3785374 A1 EP 3785374A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmit
- port
- switch
- receive
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
- H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
- H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/318—A matching circuit being used as coupling element between two amplifying stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/423—Amplifier output adaptation especially for transmission line coupling purposes, e.g. impedance adaptation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
Definitions
- Embodiments of the present invention relate generally to wireless communication devices. More particularly, embodiments of the invention relate to a transmit/receive switch and a broadband power amplifier matching network of a communication device.
- the 5G communication requires wide-band operation at the frequency range from 24GHz to 43 GHz, necessitating a wide-band and efficient wireless transmitter.
- PA power amplifier
- T/R transmit/receive
- Major transmitter specifications for example, bandwidth, output power, and efficiency
- components located past the PA active transistors for example, the PA output matching network and the T/R switch. Therefore, co- design of the PA output matching networks and T/R switch can provide a unique advantage and benefit to improve transmitter performance.
- a T/R switch can beneficially have a greater degree of design freedom and improved impedance matching if the transmit and receive branches have separate matching inductors.
- Figure l is a block diagram illustrating an example of a wireless communication device according one embodiment.
- Figure 2 is a block diagram illustrating an example of an RF frontend integrated circuit according to one embodiment.
- Figure 3 is a block diagram illustrating an RF frontend integrated circuit according to one embodiment.
- Figure 4 is a block diagram illustrating an example of a power amplifier integrated circuit according to one embodiment.
- Figure 5 shows a PA output matching network and a T/R switch according to one embodiment.
- Figure 6 shows a PA output matching network and a T/R switch according to one embodiment.
- FIG. 7 graphs a-c show a comparison between an output matching circuit by itself and an output matching circuit connected to a T/R switch.
- FIG. 8 graphs a-c show real impedance, imaginary impedance, and passive loss of a co-designed output matching circuit and T/R switch.
- FIG. 9 shows an embodiment of the T/R switch.
- Figure l is a block diagram illustrating an example of a wireless communication device according one embodiment.
- Figure 2 is a block diagram illustrating an example of an RF frontend integrated circuit according to one embodiment.
- Figure 3 is a block diagram illustrating an RF frontend integrated circuit according to one embodiment.
- Figure 4 is a block diagram illustrating an example of a power amplifier integrated circuit according to one embodiment.
- Figure 5 shows a PA output matching network and a T/R switch according to one embodiment.
- Figure 6 shows a PA output matching network and a T/R switch according to one embodiment.
- FIG. 7 graphs a-c show a comparison between an output matching circuit by itself and an output matching circuit connected to a T/R switch.
- FIG. 8 graphs a-c show real impedance, imaginary impedance, and passive loss of a co-designed output matching circuit and T/R switch.
- FIG. 9 shows an embodiment of the T/R switch. DETAILED DESCRIPTION
- an electronic circuit for wireless communication includes a transmit/receive (T/R) switch.
- the T/R switch can include a transmit switch, between a transmit port and an antenna port; a receive switch, between a receive port and the antenna port; a transmit inductor, coupled in parallel between the transmit switch the transmit port; and a receive inductor, coupled in parallel between the transmit switch the transmit port.
- an electronic circuit for wireless communication can be a co-designed circuit with a T/R switch and a power amplifier matching network.
- the matching network can include a first capacitor coupled, in parallel, to an input port of the matching network circuit; a broadband on-chip transformer coupled, in parallel, to the first capacitor; and a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the matching network circuit, wherein the output port of the matching network circuit is coupled to the transmit port of the T/R switch.
- a matching network circuit includes a first capacitor coupled, in parallel, to an input port of the matching network circuit; a broadband on-chip transformer coupled, in parallel, to the first capacitor, where the broadband on-chip transformer includes a primary winding and a secondary winding, where the secondary winding is a partial winding.
- the matching network circuit includes a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the matching network circuit.
- the primary and the secondary windings of the broadband on-chip transformer include planar octagonal windings.
- the planar octagonal winding of the primary winding are electromagnetically coupled to the planar octagonal winding of the secondary windings along a planar axis.
- the primary and the secondary windings are separated by a layer of dielectric. The primary and secondary windings may be disposed on different substrate layers as a part of an integrated circuit (IC).
- IC integrated circuit
- the partial winding of the secondary winding includes approximately 1.5 turns winding.
- the primary winding is coupled to a power supply source to supply a bias voltage to a circuit of the input port.
- the secondary winding includes at least two conductive layers.
- a two-stage power amplifier includes a first amplifier stage, a second amplifier stage, a first matching network circuit coupled in between the first amplifier stage and the second amplifier stage, and a second matching network circuit coupled to an output port of the second amplifier stage.
- the second matching network includes a first capacitor coupled, in parallel, to an input port of the second matching network circuit; a broadband on-chip transformer coupled, in parallel, to the first capacitor, where the broadband on-chip transformer includes a primary winding and a secondary winding, where the secondary winding is a partial winding.
- the primary and secondary windings may be disposed on different substrate layers as a part of an integrated circuit.
- the second matching network includes a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the second matching network circuit.
- an RF frontend integrated circuit (IC) device includes a two-stage power amplifier (PA) to amplify a transmitted signal.
- the PA includes a first amplifier stage, a second amplifier stage, a first matching network circuit coupled in between the first amplifier stage and the second amplifier stage, and a second matching network circuit coupled to an output port of the second amplifier stage.
- the second matching network includes a first capacitor coupled, in parallel, to an input port of the second matching network circuit; a broadband on-chip transformer coupled, in parallel, to the first capacitor, where the broadband on-chip transformer includes a primary winding and a secondary winding, where the secondary winding is a partial winding.
- the primary and secondary windings may be disposed on different substrate layers as a part of an integrated circuit.
- the second matching network includes a second capacitor coupled, in series, in between the broadband on-chip transformer and an output port of the second matching network circuit.
- FIG l is a block diagram illustrating an example of a wireless communication device according one embodiment of the invention.
- wireless communication device 100 also simply referred to as a wireless device, includes, amongst others, an RF frontend module 101 and a baseband processor 102
- Wireless device 100 can be any kind of wireless communication devices such as, for example, mobile phones, laptops, tablets, network appliance devices (e.g., Internet of thing or IOT appliance devices), etc.
- the RF frontend is a generic term for all the circuitry between the antenna up to and including the mixer stage. It consists of all the components in the receiver that process the signal at the original incoming radio frequency, before it is converted to a lower intermediate frequency (IF).
- IF intermediate frequency
- LNB low-noise block
- LND low-noise downconverter
- a baseband processor is a device (a chip or part of a chip) in a network interface that manages all the radio functions (all functions that require an antenna).
- RF frontend module 101 includes one or more RF
- the RF frontend IC chip further includes a frequency synthesizer coupled to the RF transceivers.
- the frequency synthesizer generates and provides a local oscillator (LO) signal to each of the RF transceivers to enable the RF transceiver to mix, modulate, and/or demodulate RF signals within a corresponding frequency band.
- the RF transceivers and the frequency synthesizer may be integrated within a single IC chip as a single RF frontend IC chip or package.
- FIG. 2 is a block diagram illustrating an example of an RF frontend integrated circuit according to one embodiment of the invention.
- RF frontend 101 includes, amongst others, a frequency synthesizer 200 coupled to a multi-band RF transceiver 211.
- Transceiver 211 is configured to transmit and receive RF signals within one or more frequency bands or a broad range of RF frequencies via RF antenna 221.
- transceiver 211 is configured to receive one or more LO signals from frequency synthesizer 200.
- the LO signals are generated for the one or more corresponding frequency bands.
- the LO signals are utilized to mix, modulate, demodulated by the transceiver for the purpose of transmitting and receiving RF signals within corresponding frequency bands.
- FIG. 3 is a block diagram illustrating an RF frontend integrated circuit according to one embodiment.
- frequency synthesizer 300 may represent frequency synthesizer 200 as described above.
- frequency synthesizer 300 is communicatively coupled to a broadband transmitter 301 and a broadband receiver 302, which may be a part of a transceiver such as transceiver 211.
- the broadband transmitter 301 transmits RF for a number of frequency bands.
- transmitter 301 includes filters 303, mixers 304, and a power amplifier 305.
- Filters 303 may be one or more low-pass (LP) filters that receives transmitting (TX) signals to be transmitted to a destination, where the TX signals may be provided from a baseband processor such as baseband processor 102.
- Mixers 301 (also referred to as up- convert mixers) are configured to mix and modulate the TX signals onto one or more carrier frequency signal based on local oscillator (LO) signals provided by frequency synthesizer 300. The modulated signals are then amplified by power amplifier 305 and the amplified signals are then transmitted to a remote receiver via antenna 310.
- LO local oscillator
- the RF frontend integrated circuit can include a receiver 302.
- Receiver 302 includes a low noise amplifier (LNA) 306, mixer(s) 307, and filter(s) 308.
- LNA 306 is to receive RF signals from a remote transmitter via antenna 310 and to amplify the received RF signals.
- the amplified RF signals are then demodulated by mixer(s) 307 (also referred to as a down-convert mixer) based on a LO signal provided by frequency synthesizer 300.
- the demodulated signals are then processed by filter(s) 308, which may be a low-pass filter.
- transmitter 301 and receiver 302 share antenna 310 via a transmitting and receiving (T/R) switch 309.
- T/R transmitting and receiving
- T/R switch 309 is configured to switch between transmitter 301 and receiver 302 to couple antenna 310 to either transmitter 301 or receiver 302 at a particular point in time. Although there is only one pair of transmitter and receiver shown, multiple pairs of transmitters and receivers may be coupled to frequency synthesizer 300, one for each of the multiple frequency bands.
- FIG. 4 is a block diagram illustrating an example of a power amplifier (PA) integrated circuit according to one embodiment.
- PA 400 can be PA 305 of Figure 3.
- PA 400 can include driver stage 401, inter-stage matching network 402, output stage 403, and output matching network 404.
- Inter-stage matching network 402 and output matching network 404 can match impedances seen by driver stage 401 and output stage 403 to maximize a power transfer for PA 400.
- inter-stage matching network 402 can match an input impedance and an output impedance to an impedance seen at the output port of driver stage 401 and an impedance seen at the input port of output stage 403, respectively, to maximize a power transfer from an input port of PA 400 to the output stage 403.
- Output matching network 404 can match the impedance seen from an output port of output stage 403 to maximize a power transfer from the output stage 403 to the output port of PA 400. Lastly, output matching network 404 can provide differential to single-ended conversion for a single- ended output port of PA 400.
- driver stage 401 and output stage 403 are amplifier stages of PA 400.
- driver stage 401 and output stage 403 are differential cascode amplifier stages.
- a differential amplifier is an amplifier that amplifies a difference between two input voltages but suppresses any voltage common to the two inputs. Differential amplifiers offer common-mode noise rejection such as noise from nearby components and power supplies.
- a cascode amplifier is a two-stage amplifier (e.g., FETs or BJTs) that includes of a common-source (or a common-emitter for BJTs) stage feeding into a common- gate (or a common-base for BJTs) stage.
- cascode amplifiers Compared with single-stage amplifiers, cascode amplifiers have a higher input output isolation (i.e., reduces a leakage in reverse transmission from the output to the input ports as there is no direct coupling between the input and output ports), a higher input impedance, a higher output impedance, a higher gain, and a
- driver stage 401 and output stage 403 include amplifiers that combine a differential topology and a cascode topology to achieve a large output swing, a wide bandwidth, with a high output power.
- a transmit inductor L TX 903 can be coupled in parallel between the transmit switch 901 and the transmit port 905.
- a receive inductor L RX 904 can be coupled in parallel between the receive switch 902 and the receive port 906.
- the transmit switch 901 and the receive switch 902 can each have two poles, operating in sync, such that when a first pole of the transmit switch is on/closed, thereby connecting the output stage to the antenna, a first pole of the receive switch is off/open, thereby disconnecting the LNA from the antenna. Simultaneously, a second pole of the transmit switch is off/open, and a second pole of the receive switch is on/closed, thereby grounding the input to the LNA.
- the poles of the transmit and receive switches 901 and 902 each comprise one or more mosfets, having control inputs that are altematingly synced by V ctri 1301 and inverse V ctri 1302 to control the poles as described above.
- L TX and L RX can be sized to optimize the impedance matching in the TX and RX paths.
- Separate inductors L TX and L RX rather than a single inductor at the antenna 907, provide an additional design freedom to optimize the bandwidth and insertion loss in the TX and RX paths. Therefore, it is noted that, in one embodiment, there is no inductor at the antenna 907.
- the inductors are separate, they can be co-designed separately with the transmit and receive circuit.
- the transmit inductor L TX can be co-designed with the PA output matching network 404, while the L oc can be co-designed with the LNA 306.
- the PA output matching network can be implemented using LC lumped elements, transformers, or transmission-line-based distributed components.
- the PA output matching network 404 uses a transformer-based matching network with two tuning capacitors, which only occupies a single inductor footprint.
- the lumped model equivalent circuit of the broadband output matching network is shown in Fig. 6.
- the PA output matching network 404 consists of an on-chip transformer 501, device parasitic capacitor C dev , and two extra MOM capacitors C p and C s.
- the physical transformer is modeled by an ideal transformer with its magnetizing inductor and leakage inductor, and its parasitic capacitors shunt to ground (C pari and C par 2) ⁇
- k is the magnetic coupling coefficient
- n is the turn radio
- L p is primary self-inductance.
- R p and R s models the loss of the transformer.
- R on 911, 914 models the on-resistance of the switch transistor and C 0ff 913, 913 models the off-capacitance of the switch transistor.
- a high-order passive network is formed to enable an instantaneously broad bandwidth.
- the value of each circuit element is chosen to achieve optimum load impedance seen by the PA output stage (R opt ) over the operation bandwidth while maintaining low insertion loss.
- the gain of the PA output stage is defined as gm »
- the goal of the broadband matching is to achieve relatively constant power gain across the operation frequency. Since gm is frequency independent, this transforms the design goal to achieve relatively constant
- PA transistors require real-value Z to achieve maximum output power and efficiency (load-pull condition), meaning that the real part of Z should be close to R opt 1010 with imaginary part close to 0 across the operation frequency.
- the PA output matching is designed for 50W antenna impedance without considering the effect from the T/R SW at the beginning, its in-band Z variation and Loss variation become larger after putting together with T/R SW in the systems integration.
- the loss variation of the PA output matching network itself is 0.4dB without adding the T/R SW and increases to l.8dB after integration with the T/R SW, as shown in FIG. 7, graph c.
- FIG. 7 graphs a-c show simulated load impedance seen by the differential output stage and simulated passive loss.
- the PA output matching network is originally designed for 50W antenna impedance without considering the T/R SW. After adding the T/R SW, the in-band impedance variation and loss variation becomes larger.
- a simulated load impedance seen by the differential output stage and simulated passive loss by co-designing the PA output matching network with T/R SW is shown in graphs a-c.
- the co-designed output matching circuit and T/R switch has a real part of the load impedance close to 50W, and an imaginary part of the load impedance close to 0.
- the in-band passive loss variation is 0.8dB.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
- Transceivers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/965,694 US10476533B1 (en) | 2018-04-27 | 2018-04-27 | Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5G communication |
PCT/US2019/028000 WO2019209604A1 (en) | 2018-04-27 | 2019-04-17 | Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5g communication |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3785374A1 true EP3785374A1 (en) | 2021-03-03 |
EP3785374A4 EP3785374A4 (en) | 2022-01-05 |
Family
ID=68292975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19792257.8A Pending EP3785374A4 (en) | 2018-04-27 | 2019-04-17 | Transmit and receive switch and broadband power amplifier matching network for multi-band millimeter-wave 5g communication |
Country Status (8)
Country | Link |
---|---|
US (1) | US10476533B1 (en) |
EP (1) | EP3785374A4 (en) |
JP (2) | JP2021520763A (en) |
KR (1) | KR102557851B1 (en) |
CN (1) | CN112204890B (en) |
CA (1) | CA3096679C (en) |
TW (1) | TW201946395A (en) |
WO (1) | WO2019209604A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11424783B2 (en) * | 2019-12-27 | 2022-08-23 | Mediatek Inc. | Transceiver having radio-frequency front-end circuit, dedicated radio-frequency front-end circuit, and switchable matching circuit integrated in same chip |
US11855679B2 (en) | 2020-03-20 | 2023-12-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Antenna interface arrangement |
EP4122108B1 (en) * | 2020-03-20 | 2024-05-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Antenna interface arrangement |
US11689162B2 (en) * | 2020-08-21 | 2023-06-27 | Samsung Electronics Co., Ltd. | 24 to 30GHz wide band CMOS power amplifier with turn-off mode high impedance |
CN114665903B (en) * | 2020-12-23 | 2023-03-28 | 大唐移动通信设备有限公司 | Millimeter wave front end processing circuit |
US11411596B1 (en) * | 2021-05-24 | 2022-08-09 | Apple Inc. | Transmit-receive switch with harmonic distortion rejection and electrostatic discharge protection |
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JPH098501A (en) * | 1995-06-15 | 1997-01-10 | Hitachi Ltd | High frequency switch |
US7269391B2 (en) * | 2004-03-16 | 2007-09-11 | Broadcom Corporation | Tunable transceiver front end |
KR100747978B1 (en) * | 2005-06-17 | 2007-08-08 | 엘지이노텍 주식회사 | Front end module and fabricating method thereof |
US10326537B2 (en) * | 2006-01-31 | 2019-06-18 | Silicon Laboratories Inc. | Environmental change condition detection through antenna-based sensing of environmental change |
JP2009528781A (en) * | 2006-02-28 | 2009-08-06 | ルネサンス・ワイヤレス | RF transceiver switching system |
US8175541B2 (en) * | 2009-02-06 | 2012-05-08 | Rfaxis, Inc. | Radio frequency transceiver front end circuit |
US8750810B2 (en) * | 2009-07-24 | 2014-06-10 | Qualcomm Incorporated | Power amplifier with switched output matching for multi-mode operation |
US9065542B2 (en) * | 2011-08-05 | 2015-06-23 | Ralink Technology Corporation | Radio frequency front end system with an integrated transmit/receive switch |
DE102013101768A1 (en) * | 2013-02-22 | 2014-08-28 | Intel Mobile Communications GmbH | Transformer and electrical circuit |
WO2016030942A1 (en) * | 2014-08-25 | 2016-03-03 | ルネサスエレクトロニクス株式会社 | Semiconductor device |
US9479160B2 (en) * | 2014-12-17 | 2016-10-25 | GlobalFoundries, Inc. | Resonant radio frequency switch |
WO2017009793A1 (en) * | 2015-07-13 | 2017-01-19 | Marvell World Trade Ltd. | Reconfigurable integrated rf front-end for dual-band wlan transceivers |
KR101770786B1 (en) * | 2016-05-16 | 2017-08-24 | (주)에프씨아이 | Transmit/Receive Switch for Radio Frequency Transceiver |
-
2018
- 2018-04-27 US US15/965,694 patent/US10476533B1/en active Active
-
2019
- 2019-04-17 WO PCT/US2019/028000 patent/WO2019209604A1/en active Application Filing
- 2019-04-17 CA CA3096679A patent/CA3096679C/en active Active
- 2019-04-17 EP EP19792257.8A patent/EP3785374A4/en active Pending
- 2019-04-17 CN CN201980028813.2A patent/CN112204890B/en active Active
- 2019-04-17 JP JP2021509948A patent/JP2021520763A/en active Pending
- 2019-04-17 KR KR1020207033787A patent/KR102557851B1/en active IP Right Grant
- 2019-04-18 TW TW108113526A patent/TW201946395A/en unknown
-
2022
- 2022-12-22 JP JP2022205135A patent/JP2023052022A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20190334560A1 (en) | 2019-10-31 |
JP2023052022A (en) | 2023-04-11 |
KR20210003210A (en) | 2021-01-11 |
CA3096679A1 (en) | 2019-10-31 |
EP3785374A4 (en) | 2022-01-05 |
CN112204890B (en) | 2022-04-15 |
US10476533B1 (en) | 2019-11-12 |
CN112204890A (en) | 2021-01-08 |
TW201946395A (en) | 2019-12-01 |
WO2019209604A1 (en) | 2019-10-31 |
KR102557851B1 (en) | 2023-07-19 |
JP2021520763A (en) | 2021-08-19 |
CA3096679C (en) | 2023-08-15 |
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